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Discussion of Problem 1658. Sum of Digits

Vedernikoff Sergey (HSE: EconomicsForever!) What is your idea of solution? [2] // Problem 1658. Sum of Digits 3 Nov 2008 23:29
Mine quite straightforward realization works about 1 sec. and uses almost 60 megabytes of memory. Please, give an idea how to solve it more quickly...


Edited by author 17.03.2010 14:10